One of the gists is that the emergence of organic life is also the emergence of intentional consciousness, even at very rudimentary levels of development. Like, nothing matters to a crystal or a rock formation, but things definitely matter to a bacterium, because it has skin (or a membrane) in the game, so to speak. — Wayfarer

All life has "drives". Viruses have "drives", to infect and reproduce. Roombas have "drives", to clean. This is not enough. What is relevant is whether these drives are experienced as such. We don't just have drives, our drives are sometimes (but crucially, not always) experienced as drives. We have this capacity, this does not remotely mean that to have a drive is intrinsically to experience that drive.

I would like to think that the sentience of beings other than human is not something for us to decide. Whether viruses or archai or plants are sentient may forever remain moot, but that anything we designate with term 'being' is sentient as part of the definition (hence the frequent Buddhist reference to 'all sentient beings'.) — Wayfarer

I thought that 'all sentient beings' was making a distinction between these and insentient beings?

I don't see why it is problematic for us to conceptually mark out what counts as sentience. For me, to be sentient is to have qualitative states. It is quite another thing (maybe impossible) to empirically know whether other species have qualitative states.